Machine for punching jacquard-cards for automatic embroidery-machines.



.l. J. KNECHT. MACHINE FOR PUNCHING JACQUARD CARDS FOR AUTOMATIC EMBROIDERY MACHINES.

APPLICATION FILED NOV. 22, 1912.

Patented Aug. 24, 1915.

2 SHEETSSHEET I.

PIG/17165565.

ILANUURAI'H co., WASHINGTON. n. c.

J. J. KNECHT.

MACHINE FOR PUNCHING JACQUARD CARDS FOR AUTOMATIC EMBROIDERY MACHINES.

APPLICATION FILED NOV. 22,1912.

Patented Aug. 24, 1915.

2 SHEETS-SHEET 2.

w" ilk- Wz'inesses. Q3

COLUMBIA PLANCIORAPH IO-,WASHINGTON. D. c.

in v JOHANN JAKOB KNECHT, or sononau, NEAR CHEMNI'IZ, GERMANY.

MACHINE FOR PUNCHING JACQUARD-GARDS FOR AUTOMATIC EMBROIDERY-MACHINES.

Specification of Letters Patent.

Patented AW. 2%, 1915.

Application filed November 22, 1912. Serial No. 732,868.

b all whom it may concern Be it known that I, JOHANN JAKoB KNncI-ir, a citizen of Switzerland, residing at Parsivalstrasse 1, Schonau, near Chemnitz, in the Kingdom of Saxony, Germany, have invented new and useful Improvements in Machines for Punching Jacquard-Cards for Automatic Embroidery Machines, of which the following is a specification.

The present invention relates to machines for punching jacquard cards for automatic embroidering machines, and particularly to card-punching machines wherein the movement of a point or stylus over the pattern or design of the embroidery to be produced is adapted to set or adjust two movable perforated devices, such as rotatable drums or drum sectors formed with rows of perforations arranged according to a suitable scheme. The adjustment of the drums is effected in known manner from two cross members which, through suitable intermediate mechanism, such as toothed racks,

transmitting bands and the like, are connected thereto.

In one type of card-punching machine to which the present improvements are applicable, the drums or drum sectors after having been set in the described manner by the displacement of the point or stylus, are moved toward each other, and actuate corresponding punches, whereby the required perforations are produced upon an intermittently fed paper band or card. These perforations indicate the lengths of the co ordinates of the points of the stitches, and are, as a rule, utilized for determining the horizontal and vertical displacement" of the work frame. The manner in which these cards are used in automatic embroidering machines is well-known and does not require further description.

I t may be mentioned that the perforations arranged uponthe periphery of the drums or other equivalent devlces are arranged ac cording to a certain scheme. For instance, the successive rows of perforations indicating the lengths of the coordinates of the points of stitches may progress in arithmetical order 1, 2, 3, t, 5

The object of the present invention is to provide means whereby the length of a coordinate of a point of stitch will be correctly indicated upon the card to be punched, even in the case where the member containing the diagram of perforations is moved past the starting point during the setting operation. In the ordinary type of card-punching machlnes at present constructed, a setting movement of the drum which is more than one revolution of the drum cannot be correctly recorded, as, after the completion of one revolution, the records would be merely repeated. I

The invention is, therefore, particularly important for all kinds of card-punching machines serving for producing jacquard cards for automatic embroidering machines in which the length of the coordinate of the point of the stitch is always measured from a certain starting point.

Up to the present it has not been possible to record the movement of the diagram of perforations when same had passed the starting point, that is to say, the motion of the diagram of perforations could only be recorded within a certain limit which was determined by the length of the diagram of be moved from to the terminal point 150 and from there to the point 70, no record would appear on the card showing that the whole diagram was once developed and moved past the starting point. The card would indicate only that part. of the move ment which was performed after passing the starting point. v

According to the present invention, the punches for perforating the card are divided into two groups. The punches of the one group are selected in the usual manner by the perforations of the diagram or selecting drum, which perforations are brought opposite the same by the movement of the stylus or point, whereas the punches of the other group are brought into and held in the operative position until the punching operation proper has been performed by the movement of the drum or other equivalent device beyond the starting point. It will thus be seen that even after the drum or other equivalent device containing the diagram of perforations has been completely moved by the whole amount of its g h,

the invention, namely the arrangement of two groups of punches and the means for operating the same. For the sake of clearness, only one diagram of perforations which is here in the shape of a cylindrical drum is shown. Figs. 3 and 4 show some detail parts of the actuatingor controlling mechanism in various characteristic positions.

The movement of the point or stylus 1,

- which is in the usual manner moved for,-

avard and backward over the design in a manner corresponding to the desired production of stitches by the jacquard mechanism, actuates the cross-members 2, 2, which are connected by a suitable transmitting gear, such as, for instance a steel band drive 3, or 3', with the shaft-a, 4:, of a drum 5, or 5 carrying a suitable diagram of perforations. Any movement of either of the cross members entails a correspond= ing rotary movement of the respective perforated drum. The perforated drums are thus set by the movement ofthe point in the usual manner, and, at each setting, a certain row of perforations which corresponds to the length of the coordinate of the point of the stitch to be produced, is brought oppositethe punches 6, or 6. The punches are slidably mounted in suitable guides between the two perforated drums. After the drums have been set they are moved toward each other and toward the punches whereby those punches which are opposite perfora tions of the drum are rendered inoperative, while other punches which are situate opposite solid portions of the drum are actuated and driven into the card band 7 which is fed after each operation.

At the beginning of the operation, a certain group of perforations of the drum which has a certain value, such as, for instance, the value 0 or any other value, is situated opposite the punches. This po- 7 sition of the drum may be considered as the starting point. :When the drums are set either in the one or in the other direction, certain other groups of perforations are brought opposite the punches. Shouldothe drum receive a movement of such magnitude as to cause that row of perforations which was used as the starting point, to pass the punches a second time, this movement 7 ever a certain group of perforations, for instance, that corresponding to the stitch size zero, is moved for the second time past the starting point, one or more punches of a second group of punches 6 (Fig. 2) is made ready for operation and kept in this position so that it may afterward be brought into operation simultaneously with the other punches 6. For the sake of 'clearness, only a few of theordinary punches 6 are shown in the drawings, In this manner,'the complete revolutions of the drum are recorded upon the card, and it is insured that the subsequent perforations are madecorrectly.

Those portions of the periphery of the drum which are opposite the second group of punches G 'are provided along the whole circumference with perforations so that the punches 6 cannot at any position of the drmnv be accidentally brought into operation and produce perforations in the card. Only when the drum 5 has been moved beyond the starting point of thediagram is one of the punches 6 rendered operative and maintained inthe operative position by additional means, for instance, by theaid of a pressure-piece 8 which is brought between the punch and the perforation of the drum.

The movement of the member which renders the punch operative is, in the construction shown, obtained by forming the face of the drum with a number, for instance five, of grooves 9, which cotiperate with feelers 10, which in turn are connected with the aforesaid member 8 by alever mechanism 11, 12. at the critical point by cam portions 13, so that, whenever the critical point is passed, the feeler 10 receives a movement which is transmitted to the member 8.

. In order to illustrate the working of the improved apparatus, the same example given in connection with the known construction of card-punching machines will be taken. The punching drumafter being set actuates in the usual mannerthe punches 6 of the first group in such a manner as to tion is brought into operation and one or more of the additional punches 6 is or are made ready to be subsequently operated. During the punchlng operation proper,

The grooves 9 are connected these punches 6 are operated together with the punches of the group 6 and a record 1s produced upon the card whlch shows clearly that the drum has not been moved" from 50 to 70, but has been moved from 50 to 150 and then from 150 (or zero) again to 70,the length of the coordinate of the last point of the stitch 170 having a value of 220, that is 50 plus 170.

It will be noted that the punches of that group which serves for indicating the movement of the drum or equivalent part past the starting point, are made ready for the subsequent punching operation before the punches of the other group are controlled or selected, but they are brought into operation at the same time as the punches of the other group. They are also returned to their initial position after the punching operation proper in a similar manner to the punches of the other group.

Owing to the particular form of the memher 8, a single feeler mechanism 10, 11, 12 may be used for operating either of two punches of the group 6 according to whether the drum has been moved past the starting point in the one or in the other direction. 4, the member 8 is made in the shape of a hook. vVhen the drum is rotated in the forward direction beyond the critical point, the member 8 covers the left punch 6 (Fig. 4, 5) While during the backward rotation of the drum, the right punch 6 will be covered (Fig. 41, 0.)

After the feeler 10 has been moved by the cam portion 13 in the one or the other direction according to the direction of rotation of the drum, and has caused the jacquard card to receive an additional perforation, it is returned to its normal position within the concentric portion of a groove 9 by the following mechanism The tail end 11 of the lever 11 extends through a cross-shaped slot 14: of an arm 16 of a lever 15. The other arm of the lever 15 engages into one of two slides 17 which, at each operation of the punching machine, are operated by the cam 20 through the intermediate levers 19, 18. When the feeler 10 is moved, which movement as above stated is transmitted by the parts 11, 12 to the hook 8, the tail end 11 of the lever 11 passes from the normal position shown in Fig. 3, a, say into the position shown in Fig. 3, 7). Upon the two slides 17 performing their movement toward each other, the lever 15 is first turned upon the pivot 22 Whereby the lever 11, which is hinged to the tail end of the lever 12 is moved into the position shown in Fig. 3, 0, and the feeler 10 is withdrawn from the groove. In the meantime, one of the two slides 17 has approached the lever 12 which extends between the two slides, and has moved the lever 12 so as to return the tail end 11 to its middle position (Fig. 3, d). When the lever 11 has reached its middle position in the vertical direction it is moved by the spring toward the face of the drum, where- As will be seen from Figs. 2 and by the feeler 10 is againcaused to engage into the concentric portion of the groove 9. The lever 15 is then returned to its initial position so that all parts resume their normal positions as shown in Fig. 3, e.

I claim 1- i 1. A card-punching machine for automatic ei'nbroidering machines comprising means for punching the card to mark the coordinates of the points of various sizes of stitches up to a predetermined length of the cooordinate of a point of stitch, and auxiliary and automatic means for punching the card for stitches when the coordinate of a point of stitch is of greater length than said predetermined length, substantially as described.

2. A card-punching machine for automatic embroidering machines comprising a group of punches, means for actuating said punches to perforate the card to mark the coordinates of the points of stitches up to a predetermined length of a coordinate of a point of stitch, a second group of punches, and automatic means for actuating both groups of punches, to perforate the card to mark the coordinates of the points of stitches when said coordinates are over said predetermined length, substantially as described.

3. A card-punching machine for automatic embroidering machines comprising a rotary member containing a diagram of perforations, punching means actuated by said rotary member to perforate the card to mark the coordinates of the points of stitches up to a predetermined length of a coordinate of a point of stitch, and auxiliary punching means actuated automatically from said rotary member in conjunction with first said punching means to perforate the card to mark the coordinates of stitches when said coordinates are over said predetermined length, substantially as described.

A card-punching machine for automatic embroidering machines comprising a rotary perforated drum formed with a diagram of perforations, means actuated by said device to punch the card to indicate the coordinates of the points of stitches during the first revolution of the drum, in combination with auxiliary means for punching the cards to indicate the correct coordinates of the points of stitches when the said drum has been rotated more than one revolution; substantially as described. a

5. A card-punching machine for automatic embroidering machines, comprising a rotatable drum formed with a diagram of perforations, means actuated by said device to punch the card to indicate the points of stitch coordinates of normal length, in combin ation with automatically controlled means for punching the card to indicate the points of stitch coordinates of abnormal length when the said drum is rotated more than one revolution; substantially as described.

6. A card-punching machine for automatic embroidering machines comprising a plurality of rotatable drums each having a predetermined arrangement of perforations, a plurality of groups of punches actuated by said drums to punch the card to indicate the points of stitch coordinates of normal length, in combination with other groups of punches for punching the card to indicate the points of stitch coordinates of abnormal length when the said drums are rotated more than one revolution; substantially as described. 7

7. A card-punching machine for automatic embroidering machines comprising a rotatable drum having a predetermined arrangement of perforations, a plurality of punches arranged to be actuated by said drum to punch the card to indicate the points of stitch coordinates of normal length, a second set of punches for punching the card simultaneously with the first mentioned punches to indicate the points of stitch coordinates of abnormal length when the said drum is rotated more than one revolution, and means for controlling the second set of punches; substantially as described.

8. A card-punching machine for automatic embroidering machines comprising a rotatable drum having a predetermined arrangement of perforations, a plurality of punches actuated by said drum to punch the card, a second group of punches, and automatic means for controlling and actuating the second groupof punches after the drum has been rotated more than one revolution; substantially as described.

9. A card-punching machine for automatic embroidering machines, comprising a rotatable drum formed with a diagram of perforations, a plurality of punches actuated from said drum to punch the card, in combination with a second group of punches, a hook-shaped pressure-piece, and means for actuating said pressure-piece to render and maintain one of the second group of punches in operative position after the drum has been rotated more than one revolution.

10. A card-punching machine for automatic embroidering machines, comprising a matic embroidering machines comprising a rotatable drum'formed with a diagram of perforations, a plurality of punches actuated from said drum to punch thecard, in combination with a second group of punches, a pressure-piece, cams on said drum, and means operated by said cams to cause the said pressure-piece to'render and maintain one of the second group of punches in operative position after the drum has been rotated more than one revolution.

12. A card-punching machine for automatic embroidering machines, comprising a rotatable drum formed with a diagram of perforations, a plurality of punches actuated from said drum to punch said card, in combination with a second group of punches, a pressure-piece, grooves in the face of said drum, cam portions in said grooves, feelers in said grooves actuated by the cam portions, and levers connecting said feelers, to said pressure-piece to cause same to render and maintain one ,of the second group of punches in operative position after the drum has been rotated more than one revolution.

13. A card-punching machine for automatic embroidering machines, comprising a rotatable drum formed with a diagram of perforations, a plurality of punches actuated from said drum to punch said card, in combination with a second group of punches, a pressure piece, grooves in the face of said drums, cam portions in said grooves a spring actuated arm, feelers mounted on said arm and arranged to work in said grooves and a lever connecting said spring-arm to said pressure-piece to cause same to render and maintain one of the second group of punches in operative position after the drum has been rotated more than one revolution.

14:. A card-punching machine for automatic embroidering machines, comprising a rotatable drum formed with a diagram of perforations, a plurality of punches actuated from said drum to punch said card, in combination with a second group of punches, a pressure-piece, grooves in the face of said drum, cam portions in said grooves, a spring-actuated arm, a crossshaped slot, a tail piece extending into said cross-shaped slot, feelers mounted on said arm and arranged to work in said grooves and a lever connecting said spring arm to said pressure-piece to cause same to operate one of said second group of punches after one revolution of the drum.

15. A card-punching machine for embroidering machines, comprising a rotatable drum formed with a diagram of perforations, a plurality of punches set from said drum, in combination with a second plurality of punches, means for controlling and selecting the second group of punches before the first group, and means for simultaneously operating said punches to punch the card.

16. A card-punching machine for embroidering machines, comprising a rotatable drum formed with a diagram of perforations, a plurality of punches set from said drum, in combination with a second plurality of punches, a pressure-piece, grooves in the face of said drum, feelers in said grooves, means for connecting said feelers to said pressure-piece, means for removing said feelers from said grooves and means for returning said feelers to said grooves.

17. A card-punching machine for embroidering machines comprising a rotatable drum formed with a diagram of perforations, a group of punches actuated from said drum, in combination with a second group of punches, a pressure-piece, grooves in the face of said drum, cam portions in said grooves, feelers in said grooves, levers connecting said feelers to said pressure-piece, two movable slides, and a lever connecting said slides to said spring actuated arm.

18. A card punching machine for embroidering machines comprising a rotatable drum formed with a diagram of perforations, a group of punches actuated from said drum, in combination with a second group of punches, a pressure-piece, grooves in the face of said drum, cam portions in said grooves, feelers in said grooves, levers connecting said feelers to said pressure-piece, two movable slides, means for actuating said slides simultaneously to cause said feelers to return to Working position.

19. Award-punching machine for embroidering machines comprising a rotatable drum formed with a diagram of perforations, a group of punches actuated from said drum, in combination with a second group of punches, a pressure-piece, grooves in the face of said drum, cam portions in said grooves, a spring-actuated drum, feelers mounted on said arm and arranged to work in said grooves, a lever connecting said arm to said pressure-piece, two movable slides, a lever connecting said slides to said spring mounted arm, and means for simultaneously moving said slides.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

JOHANN JAKOB KNECHT.

Witnesses M. BENNDARF, L. ZIEGLER.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents Washington, D. G. 

